public TestScreenBuffer(int width, int height, char defaultChar, Colors colors, params string[] lines)
{
int size = height * width;
var buffer = new CharAndColor[size];
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
int offset = y * width + x;
buffer[offset] = ColorExtensions.Set(colors, defaultChar);
}
}
for (int i = 0; i < lines.Length; i++)
{
for (int x = 0; x < lines[i].Length; x++)
{
int offset = i * width + x;
buffer[offset] = ColorExtensions.Set(colors, lines[i][x]);
}
}
Buffer = buffer;
}
// write up specs (tests) to follow these notes
// https://docs.microsoft.com/en-us/dotnet/api/system.console.movebufferarea?view=netframework-4.8
// by implementing this using a source and destination
// I'll be able to create a scrollable text area that can display a subsection (visible region) of a larger area.
// for now, all I need is one scroll direction, that is panDown aka scrollUp. (scroll the contents UP but move the viewport DOWN. )
// if we're literally scrolling an expanding window, when we print to the bottom we extend the height by 1 row, and move the viewport down 1 row.
// if we limit the maximum bytes allowed to be used then we clip from the top and show @clipped@ or "clipmessage" when we scroll back the other way.
// if Highspeed logging , you can quickly hot 100 000 rows , which would be 20MB to 30MB, of buffer. So clipping is essential
// to prevent memory exhaustion for a server monitoring applicaion, or a high speed logging utility.
// do I want to use a linkedList of Rows for the buffer, so that I can easily expand (and clip) the buffer without performance problems?
public Scroller(CharAndColor[] buffer, int bufferWidth, int bufferHeight, char emptySpaceChar, Colors colors)
{
_buffer = buffer;
_bufferWidth = bufferWidth;
_bufferHeight = bufferHeight;
_colors = colors;
_fillChar = _colors.Set(emptySpaceChar);
}
public void ClearScreen()
{
CharAndColor @char = Colors.Set(ClearScreenChar);
for (int x = 0; x < _width; x++)
{
for (int y = 0; y < _height; y++)
{
int xy = y * _width + x;
_buffer[xy] = @char;
}
}
}
/// <summary>
/// 文字列内に存在する独自のタグを解析する
/// </summary>
private void ColorTagCheck(string str)
{
messageAndColor = new List <CharAndColor>();
CharAndColor charAndColor = new CharAndColor();
int state = 0;
ColorState currentColor = ColorState.NONE; // 文字色
ColorState candidateColor = ColorState.NONE; // タグから解析している途中で候補に挙がった色
bool isTagClosed = false;
for (int i = 0; i < str.Length; i++)
{
switch (state)
{
case 0:
if (str[i] == '<')
{
state = 1;
isTagClosed = false;
continue;
}
break;
case 1:
if (str[i] == 'r')
{
state = 2;
candidateColor = ColorState.RED;
}
else if (str[i] == 'g')
{
state = 2;
candidateColor = ColorState.GREEN;
}
else if (str[i] == 'b')
{
state = 2;
candidateColor = ColorState.BLUE;
}
else if (str[i] == 'c')
{
state = 2;
candidateColor = ColorState.CYAN;
}
else if (str[i] == 'm')
{
state = 2;
candidateColor = ColorState.MAGENTA;
}
else if (str[i] == 'y')
{
state = 2;
candidateColor = ColorState.YELLOW;
}
else if (str[i] == 'w')
{
state = 2;
candidateColor = ColorState.WHITE;
}
else if (str[i] == '/')
{
state = 2;
isTagClosed = true;
}
else
{
state = 0;
break;
}
continue;
case 2:
if (str[i] == '>')
{
state = 0;
currentColor = candidateColor;
continue;
}
state = 1;
isTagClosed = false;
break;
}
// </>が使われた次の文字からはデフォルトに戻す
if (isTagClosed)
{
currentColor = ColorState.NONE;
isTagClosed = false;
}
charAndColor.character = str[i];
charAndColor.objColor = currentColor;
messageAndColor.Add(charAndColor);
}
}
/// <summary>
/// 文字列内に存在する独自のタグを解析する
/// </summary>
private void ColorTagCheck(string str)
{
messageAndColor = new List<CharAndColor>();
CharAndColor charAndColor = new CharAndColor();
int state = 0;
ColorState currentColor = ColorState.NONE; // 文字色
ColorState candidateColor = ColorState.NONE; // タグから解析している途中で候補に挙がった色
bool isTagClosed = false;
for (int i = 0; i < str.Length; i++)
{
switch (state)
{
case 0:
if (str[i] == '<')
{
state = 1;
isTagClosed = false;
continue;
}
break;
case 1:
if (str[i] == 'r')
{
state = 2;
candidateColor = ColorState.RED;
}
else if (str[i] == 'g')
{
state = 2;
candidateColor = ColorState.GREEN;
}
else if (str[i] == 'b')
{
state = 2;
candidateColor = ColorState.BLUE;
}
else if (str[i] == 'c')
{
state = 2;
candidateColor = ColorState.CYAN;
}
else if (str[i] == 'm')
{
state = 2;
candidateColor = ColorState.MAGENTA;
}
else if (str[i] == 'y')
{
state = 2;
candidateColor = ColorState.YELLOW;
}
else if (str[i] == 'w')
{
state = 2;
candidateColor = ColorState.WHITE;
}
else if (str[i] == '/')
{
state = 2;
isTagClosed = true;
}
else
{
state = 0;
break;
}
continue;
case 2:
if (str[i] == '>')
{
state = 0;
currentColor = candidateColor;
continue;
}
state = 1;
isTagClosed = false;
break;
}
// </>が使われた次の文字からはデフォルトに戻す
if (isTagClosed)
{
currentColor = ColorState.NONE;
isTagClosed = false;
}
charAndColor.character = str[i];
charAndColor.objColor = currentColor;
messageAndColor.Add(charAndColor);
}
}
